Tay: Encoder-decoders provide 2x parameter capacity at matched FLOPs
Yi Tay · The 10,000x Yolo Researcher Metagame — with Yi Tay of Reka · Jul 5, 2024 · at 1:13:41
Yi Tay, co-founder of Reka, explains the efficiency trade-offs between encoder-decoder and decoder-only transformer architectures.
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“The only big benefit of encoder decoders [4425] Yi Tay: Is that it has this thing called, like, I mean, what I like to call intrinsic sparsity. [4430] Podcast Host: Ok. [4431] Yi Tay: So basically, an encoder decoder with, like, n baramps is, like, basically, if it's, like, it has the cost of, like, a n over two decoder model. [4443] Yi Tay: So it's a bit like a sparse model because you actually spend the same amount of flops, it's just that you have two sets of parameters like for encoder and decoder, right? [4450] Yi Tay: So it's actually flop matched with a decoder model of like half the parameters.”
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